CareerPlanSign in

Senior Machine Learning Scientist (Experiences)

London, United Kingdom🌐 Remote💼 Full-time🗓 2026-07-30 → 2026-09-26

Core

Technical lead and pod architect for the core discovery engine, owning ML strategy for Search, Retrieval, Ranking, and Content AI to power travel itinerary planning.

Role type

Senior IC machine learning scientist (technical lead)

Builds

Production-grade ML models for search, retrieval, ranking, and generative AI features

Domain

Travel technology, marketplace discovery, recommendation systems

Deliverable

production ML models

Required skills

Python, PyTorch, TensorFlow, deep learning, feature engineering, multi-task learning, ranking algorithms, model optimization (quantization/distillation), experiment tracking, data versioning

Preferred skills

Graph Neural Networks, knowledge graphs, multi-modal representation learning, agentic AI workflows, sequential recommendation systems

Responsibilities

Design and implement custom model components and loss functions; evaluate and adapt SOTA architectures for production; build validation automation and golden datasets; collaborate with engineering on compute infrastructure; diagnose algorithmic bugs and implement guardrails; mentor mid-level and associate ML scientists

Seniority

Senior, hands-on IC with technical leadership

Sourced via greenhouse · Listed on CareerPlan, which tracks 70,000+ jobs from 20+ sources.